No Slack - Glacier Grey is the off white color of the hull of the steplift from 1987 until 1993 or 1994. * According to Mini-Craft glacier grey wasn't around until 1987, but it may not be far off from the color of your hull.
Try contacting mini-craft or wellcraft directly to verify. *I bought a quart from Mini-Craft and patched a few spots on my boat, so I know that glacier grey was the correct color for my 88 steplift. *
https://www.minicraft.com/retail/wellcraft.htm
(800) 282-8244
http://www.wellcraft.com/ContactUs/ContactUs_Index.asp
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